1680280

Information

• Patent Grant
• 1680280

• References
• Source

• Patent Number

  1,680,280

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1928
  96 years ago

• CPC

  • E02D17/10 - Covering trenches for foundations
  • E02D29/14 - Covers for manholes or the like Frames for covers

• US Classifications

  • 138 - Pipes and tubular conduits